Fig 6 - uploaded by seyed akbar Khodaparast
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Phyllactinia roboris on Q. macranthera. Right: A. Ascocarp, B. acicular appendages, C. asci, D. ascospores. Left: A. Conidiophores, B. conidia, C. germinating conidium.
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Citations
... Syst. 28 (3) (Vasyagina et al., 1961;Akhundov, 1979;Gaponenko et al., 1983;Amano, 1986;Chen et al., 1987;Gorter, Eicker, 1987;Bunkina, 1991;Simonyan, 1994;Shin, 2000;Kurt, Soylu, 2001;Babu et al., 2002;Khodaparast et al., 2005;Pirnia et al., 2006Pirnia et al., , 2007Takamatsu et al., 2008;Sharma et al., 2011;Braun, Cook, 2012;Meeboon et al., 2018;Farr, Rossman, 2021). Додамо, що в загальносвітовому списку борошнисторосяних грибів, складеному К. Амано (Amano, 1986), P. moricola на M. alba вказується для Німеччини, європейської частини колишнього СРСР та України. ...
Information on the record of Phyllactinia moricola, a new in Ukraine alien powdery mildew fungus, is reported. The teleomorph of the fungus was collected in October–December 2020 on Morus alba in Odesa. The description and illustrations of the studied material are provided. The disease caused by this species can significantly reduce the ornamental properties of mulberry, a popular plant that is often used in greenery in the settlements of Ukraine. It is noted that the fungus can spread to Southern Europe, where it may cause significant damage to horticulture and silk production.
... hosts (Braun and Cook 2012). Because of the frequency of 3(-4)-spored asci, P. fraxini on Fraxinus spp. was later removed from synonymy with P. guttata and recognized as separate species (Homma 1937;Blumer 1967;Braun 1987Braun , 1995Chen et al. 1987;Eliade 1990;Fakirova 1991;Simonyan 1994;Nomura 1997;Shin 2000;Bolay 2005;Pirnia et al. 2007). In phylogenetic analyses, Takamatsu et al. (2008) confirmed P. fraxini as a distinct species. ...
Two powdery mildews, Erysiphe syringae and the previously undescribed Phyllactinia syringae, sp. nov., occur on lilac in western North America. Phyllactinia syringae is found on common lilac, whereas E. syringae is found on Chinese lilac and, occasionally, common lilac. Infection by P. syringae is extremely unobtrusive until formation of a hypophyllous mycelial mat with chasmothecia in late fall. Infection by E. syringae in late summer is conspicuous, with its thick, superficial mycelial mat on the leaf upper surface detracting from the aesthetic appearance of the bush.
... The fruiting bodies of the powdery mildews are more or less spherical to somewhat flattened, closed (nonostiolate) ascomata, which have been classified as chasmothecia (Braun & Cook 2012). Pirnia et al. (2005Pirnia et al. ( , 2006Pirnia et al. ( , 2007 showed morphology of penicillate cells in various species of some powdery mildew can be used as useful character for species delimitation. The knowledge of the species of powdery mildews in particular area is important concerning the biology and taxonomy of these fungi and for phytopathological purposes (Khodaparast & Abbasi 2009). ...
... The conidia of most Oidium species vary from cylindric, ellipsoid, ovoid to doliform and their surface is usually smooth. Khodaparast et al. (2000Khodaparast et al. ( , 2001 and Pirnia et al. (2005Pirnia et al. ( -2007 have reported new species of powdery mildews in Iran. Ershad (2009) listed many taxa of Erysiphales. ...
Anamorphic stage of Erysiphe syringae-japonicae
on Jasminum is described and illustrated. The species is characterized by having short
conidiophores and solitary conidia. In some
conidiophores foot-cells were curved to sinuous in basal part
... et Lév.) Fr. is one of the most important species, with its broad host range and distribution (Babu et al., 2002;Hartney et al., 2005;Khodaparast & Abbasi, 2009;Mmbaga et al., 2004;Shi et al., 2009). Morphological characteristics of the species are: chasmothecia of about 160Á250 mm diameter with appendages 230Á425 mm long, each containing 14Á35 asci, which are unitunicate, 65Á95 mm long and 25Á40 mm wide, broadly oval to ellipsoid, short stalked asci having two ascospores of about 25Á40 mm length and 15Á25 mm width (Pirnia et al., 2007). ...
... It was previously reported that chasmothecia of P. guttata have two kinds of appendages which are known as acicular appendage with a bulbous swelling and penicillate cell (Braun et al., 2002; Pirnia et al., 2006). According to the dimensions of various structures and characteristics of the appendages, the pathogen was identified as P. guttata (BacIgálová et al., 2005;Klein et al., 1998;Pirnia et al., 2007). Main differences of P. guttata from the closer species are given in Table III. ...
... Main differences of P. guttata from the closer species are given in Table III. It can be seen that the range of dimensions of chasmothecia, appendages, asci and ascospores of P. guttata were different from the other species (Pirnia et al., 2007). Amano (1986) pointed out that the genus Phyllactinia infected 700 host species from 69 plant families. ...
Fungi belonging to the family Erysiphaceae (Ascomycota) are obligate biotrophs causing powdery mildew disease on various host plants. Most of the species in this family are ectoparasitic while the genus Phyllactinia is known to be partly endoparasitic. Phyllactinia guttata is one of the most important powdery mildews among Phyllactinia species causing disease on deciduous trees. In this study, P. guttata was detected on 11 woody plant species belonging to 8 families of Actinidiaceae, Betulaceae, Cornaceae, Fagaceae, Moraceae, Rhamnaceae, Rosaceae and Ulmaceae in 5 provinces in the Black Sea Region of Turkey. This is the first report of P. guttata on Actinidia deliciosa, Alnus glutinosa var. barbata, A. glutinosa var. glutinosa, Cornus mas, Cydonia oblonga and Fagus orientalis in the Black Sea Region of Turkey.
... Ascospores were 25AE7-42AE7 lm · 14AE3-24AE8 lm, ellipsoid-ovoid, yellowish-orange and highly guttulate. Based on the asexual and sexual characteristics, the fungus was identified as Phyllactinia fraxini (Pirnia et al., 2007). Specimens were preserved in the Herbarium of the Mycology Laboratory of the Plant Protection Department, Ondokuz Mayis University, Samsun. ...
Powdery mildew first appeared on mature 3-year-old bushes of ‘jellyfish tree’, Medusagyne oppositifolia (Medusagynaceae), grown from seed at Eden Project, Cornwall, England, in collaborative conservation work
with the Seychelles Government. Initially, young leaves showed distortion and patches of mycelium bearing conidia. Later, light brown lesions developed and badly affected plants showed extensive leaf-drop, especially destructive in seedlings. This is the first report of powdery mildew
on Medusagyne. Conidia are catenate, elliptical to doliiform, (19) 24–34(47AE5) · (13AE5) 15–18 lm with fibrosin bodies and a sinuous wrinkling pattern. Conidiophores erect with a long cylindrical straight or twisted foot-cell, 41–86AE5 (140) · (7) 9–14 (16) lm, arising towards one end of
its hyphal mother cell, the lower septum occasionally raised up to 10 lm, followed by a generative cell and 2–5 maturing conidial units. Superficial hyphal cells, 25–105 · 4AE5–11AE5 lm, branched at right angles, bearing
inconspicuous or slightly nipple-shaped appressoria. No chasmothecia were present, but characteristics are consistent with Oidium subgenus Fibroidium, the anamorph of Podosphaera. The short, broad germ tubes typical of the fibroidium type, brevitubus subtype narrowed the identification to Podosphaera section Sphaerotheca subsect. Magnicellulatae (Cook & Braun, 2009) with the morphology close to that of Podosphaera (syn. Sphaerotheca) fusca, apparently a ubiquitous species with a broad host range.
... Ascospores were 25AE7-42AE7 lm · 14AE3-24AE8 lm, ellipsoid-ovoid, yellowish-orange and highly guttulate. Based on the asexual and sexual characteristics, the fungus was identified as Phyllactinia fraxini (Pirnia et al., 2007). Specimens were preserved in the Herbarium of the Mycology Laboratory of the Plant Protection Department, Ondokuz Mayis University, Samsun. ...
White powdery masses were observed on leaves of Lactuca tuberosa in southwestern Iran. Infected leaves were examined using a stereomicroscope and microscopic slides of fungal structures prepared in lactic acid 25%. Based on morphological characteristics of conidia, appressoria and foot cell of conidiophores, the fungus was identified as Golovinomyces bolayi. The fungus is an important pathogen causing powdery mildew disease and occurs on various Lactuca species. G. bolayi separated from G. orontii species complex and distinguished from other closely related species by having catenate conidia as well as nipple-shaped appressoria and sinuous-curved foot cell of conidiophores.
A comprehensive review of the species, host ranges and geographical distribution of powdery mildew fungi in Iran is presented. The listed fungi belong to eight teleomorphic genera, viz. Blumeria (one species), Erysiphe sect. Erysiphe (14 species), E. sect. Microsphaera (15 species), E. sect. Uncinula (six species), Golovinomyces (nine species), Leveillula (14 species), Neoerysiphe (two species), Phyllactinia (seven species), Podosphaera sect. Podosphaera (three species), P. sect. Sphaerotheca (12 species), and Sawadaea (two species); and one anamorphic genus, Oidium (five species). The 528 host plant species reported in the checklist pertain to 287 genera.
